package com.sky.service.impl;

import com.sky.context.BaseContext;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.ShoppingCart;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.ShoppingCartService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;
@Service
public class ShoppingCartServiceImpl implements ShoppingCartService {
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;
    @Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart = new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO, shoppingCart);
        Long userId = BaseContext.getCurrentId();
        shoppingCart.setUserId(userId);
        List<ShoppingCart> shoppingCarts = shoppingCartMapper.selectIsExist(shoppingCart);
        if (shoppingCarts != null && shoppingCarts.size() == 1) {
            shoppingCart = shoppingCarts.get(0);
            shoppingCart.setNumber(shoppingCart.getNumber() + 1);
            shoppingCartMapper.updateForAdd(shoppingCart);
        } else {
            Long dishId = shoppingCartDTO.getDishId();
            if (dishId != null) {
                Dish dish = dishMapper.selectDishById(dishId);
                shoppingCart.setName(dish.getName());
                shoppingCart.setImage(dish.getImage());
                shoppingCart.setAmount(dish.getPrice());

            } else {
                Setmeal setmeal = setmealMapper.selectById(shoppingCartDTO.getSetmealId());
                shoppingCart.setName(setmeal.getName());
                shoppingCart.setImage(setmeal.getImage());
                shoppingCart.setAmount(setmeal.getPrice());
            }
            shoppingCart.setNumber(1);
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartMapper.insert(shoppingCart);


        }
    }

    @Override
    public List<ShoppingCart> list() {
        Long currentId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setUserId(currentId);
        List<ShoppingCart> shoppingCarts = shoppingCartMapper.selectIsExist(shoppingCart);
        return shoppingCarts;
    }

    @Override
    public void cleanShoppingCart() {
        shoppingCartMapper.delete(BaseContext.getCurrentId());
    }

    @Override
    public void deleteOne(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart=new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        Long currentId = BaseContext.getCurrentId();
        shoppingCart.setUserId(currentId);
        List<ShoppingCart> shoppingCarts = shoppingCartMapper.selectIsExist(shoppingCart);
        if(shoppingCarts!=null&&shoppingCarts.size()==1){
            ShoppingCart shoppingCart1 = shoppingCarts.get(0);
            if(shoppingCart1.getNumber()==1){
                Long id = shoppingCart1.getId();
                shoppingCartMapper.deleteById(id);
            }else {
                shoppingCart1.setNumber(shoppingCart1.getNumber()-1);
                shoppingCartMapper.updateForAdd(shoppingCart1);
            }
        }

    }


}

